Purge of the Ruins

The characters have spent a good 2-3 months searching out some ancient runis that were rumored to contain great riches and magical power but is also known to be s breeding place for evil creatures, and recently the party has found out that a cult of orcus has taken the ruins as a base of operations for that part of the world, upon hearing this they eagerly declared that they were going to purge these ruins of the cult’s evil taint…